Pith Number

pith:NOBXUG5P

pith:2021:NOBXUG5PSMQG7OPG6RCE4JVV7C

not attested not anchored not stored refs pending

Boundary IoU: Improving Object-Centric Image Segmentation Evaluation

Alexander C. Berg, Alexander Kirillov, Bowen Cheng, Piotr Doll\'ar, Ross Girshick

arxiv:2103.16562 v1 · 2021-03-30 · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NOBXUG5PSMQG7OPG6RCE4JVV7C}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

ToonOut: Fine-tuned Background-Removal for Anime Characters

Receipt and verification

First computed	2026-07-05T02:27:53.458830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b837a1baf93206fb9e6f4444e26b5f88e810c27e3c1b6d2f6280c51330c8232

Aliases

arxiv: 2103.16562 · arxiv_version: 2103.16562v1 · doi: 10.48550/arxiv.2103.16562 · pith_short_12: NOBXUG5PSMQG · pith_short_16: NOBXUG5PSMQG7OPG · pith_short_8: NOBXUG5P

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NOBXUG5PSMQG7OPG6RCE4JVV7C \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6b837a1baf93206fb9e6f4444e26b5f88e810c27e3c1b6d2f6280c51330c8232

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32cacfe4d51238db2792b6ea498d0815ccd323ef773008bc94f7c1d518ee56f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-03-30T17:59:20Z",
    "title_canon_sha256": "74a7ee1eb266f0009973bd418503d3143b0a6e04f664f3d5eb28c51f96bd8d03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.16562",
    "kind": "arxiv",
    "version": 1
  }
}